GB2417156B - Energy density control system using a two-dimensional energy density sensor - Google Patents

Energy density control system using a two-dimensional energy density sensor

Info

Publication number
GB2417156B
GB2417156B GB0515390A GB0515390A GB2417156B GB 2417156 B GB2417156 B GB 2417156B GB 0515390 A GB0515390 A GB 0515390A GB 0515390 A GB0515390 A GB 0515390A GB 2417156 B GB2417156 B GB 2417156B
Authority
GB
United Kingdom
Prior art keywords
energy density
control system
dimensional
sensor
density sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB0515390A
Other languages
English (en)
Other versions
GB2417156A (en
GB0515390D0 (en
Inventor
Scott David Sommerfeldt
Benjamin Mahonri Faber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brigham Young University
Original Assignee
Brigham Young University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brigham Young University filed Critical Brigham Young University
Publication of GB0515390D0 publication Critical patent/GB0515390D0/en
Publication of GB2417156A publication Critical patent/GB2417156A/en
Application granted granted Critical
Publication of GB2417156B publication Critical patent/GB2417156B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17813—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
    • G10K11/17817—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms between the output signals and the error signals, i.e. secondary path
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • G10K11/1786—
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17885—General system configurations additionally using a desired external signal, e.g. pass-through audio such as music or speech

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
GB0515390A 2004-08-09 2005-07-27 Energy density control system using a two-dimensional energy density sensor Active GB2417156B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/913,312 US7327849B2 (en) 2004-08-09 2004-08-09 Energy density control system using a two-dimensional energy density sensor

Publications (3)

Publication Number Publication Date
GB0515390D0 GB0515390D0 (en) 2005-08-31
GB2417156A GB2417156A (en) 2006-02-15
GB2417156B true GB2417156B (en) 2008-01-16

Family

ID=34976667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0515390A Active GB2417156B (en) 2004-08-09 2005-07-27 Energy density control system using a two-dimensional energy density sensor

Country Status (4)

Country Link
US (1) US7327849B2 (ja)
JP (1) JP5336690B2 (ja)
DE (1) DE102005037034B4 (ja)
GB (1) GB2417156B (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008538420A (ja) * 2005-04-22 2008-10-23 アノクシス・アーゲー アクティブノイズ低減システムにおける二次経路を複製するための方法
US8270625B2 (en) * 2006-12-06 2012-09-18 Brigham Young University Secondary path modeling for active noise control
JP5156934B2 (ja) * 2008-03-07 2013-03-06 学校法人日本大学 音響測定装置
JP5093702B2 (ja) * 2008-06-20 2012-12-12 学校法人日本大学 音響エネルギ計測装置並びにこれを用いた音響性能評価装置及び音響情報計測装置
US8638956B2 (en) * 2009-08-06 2014-01-28 Ken K. Deng Acoustic velocity microphone using a buoyant object
US20120079282A1 (en) * 2010-06-28 2012-03-29 Lionstone Capital Corporation Seamless end-to-end data obfuscation and encryption
US10603633B2 (en) * 2012-02-24 2020-03-31 Corning Incorporated Honeycomb structure comprising a cement skin composition with crystalline inorganic fibrous material
WO2013135819A1 (en) * 2012-03-14 2013-09-19 Bang & Olufsen A/S A method of applying a combined or hybrid sound -field control strategy
JP6689241B2 (ja) 2017-09-15 2020-04-28 株式会社東芝 騒音低減装置、飛行体、発電装置、騒音低減方法及び騒音低減プログラム
GB201804129D0 (en) * 2017-12-15 2018-05-02 Cirrus Logic Int Semiconductor Ltd Proximity sensing
CN116094564A (zh) * 2017-12-29 2023-05-09 苹果公司 频域正交频分复用（ofdm）符号内多rx波束测量和动态rx波束扫描的方法
CN108847250B (zh) * 2018-07-11 2020-10-02 会听声学科技（北京）有限公司 一种定向降噪方法、系统及耳机
CN112071298A (zh) * 2020-09-08 2020-12-11 珠海格力电器股份有限公司 油烟机降噪控制方法、系统及油烟机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568282A2 (en) * 1992-04-28 1993-11-03 Westinghouse Electric Corporation Noise control system
US5699437A (en) * 1995-08-29 1997-12-16 United Technologies Corporation Active noise control system using phased-array sensors
US5724432A (en) * 1993-05-06 1998-03-03 Centre Scientifigue Et Technique Du Batiment Acoustic attenuation device with active double wall
US20030219132A1 (en) * 2002-04-04 2003-11-27 Brigham Young University Multi-channel active control system and method for the reduction of tonal noise from an axial fan
GB2396512A (en) * 2002-12-19 2004-06-23 Ultra Electronics Ltd Active noise attenuation system for vehicles

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US2043416A (en) 1933-01-27 1936-06-09 Lueg Paul Process of silencing sound oscillations
JPS62133376A (ja) * 1985-12-06 1987-06-16 Hitachi Ltd 音響インテンシテイワツトメ−タ
JP2757514B2 (ja) * 1989-12-29 1998-05-25 日産自動車株式会社 能動型騒音制御装置
JPH06167984A (ja) * 1992-11-30 1994-06-14 Fujitsu Ten Ltd 騒音制御装置
JP3340496B2 (ja) * 1993-03-09 2002-11-05 富士通株式会社 アクティブ騒音制御システムの伝達特性の推定方法
US5689572A (en) * 1993-12-08 1997-11-18 Hitachi, Ltd. Method of actively controlling noise, and apparatus thereof
JP3388287B2 (ja) * 1994-06-27 2003-03-17 川崎重工業株式会社 移動体の発生音測定方法および測定装置
FR2740599B1 (fr) * 1995-10-30 1997-12-19 Technofirst Dispositif d'attenuation acoustique active destine a etre dispose a l'interieur d'un conduit, en particulier pour l'insonorisation de reseau de ventilation et/ou de climatisation
US6192133B1 (en) * 1996-09-17 2001-02-20 Kabushiki Kaisha Toshiba Active noise control apparatus
JP3863306B2 (ja) * 1998-10-28 2006-12-27 富士通株式会社 マイクロホンアレイ装置
US6901147B1 (en) * 1999-06-29 2005-05-31 Kabushiki Kaisha Toshiba Three-dimension active silencer
JP3789685B2 (ja) * 1999-07-02 2006-06-28 富士通株式会社 マイクロホンアレイ装置
JP3863323B2 (ja) * 1999-08-03 2006-12-27 富士通株式会社 マイクロホンアレイ装置
US7031474B1 (en) * 1999-10-04 2006-04-18 Srs Labs, Inc. Acoustic correction apparatus
JP3906063B2 (ja) * 2001-11-20 2007-04-18 株式会社東芝 能動消音装置及び能動消音方法
JP3843082B2 (ja) * 2003-06-05 2006-11-08 本田技研工業株式会社 能動型振動騒音制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568282A2 (en) * 1992-04-28 1993-11-03 Westinghouse Electric Corporation Noise control system
US5724432A (en) * 1993-05-06 1998-03-03 Centre Scientifigue Et Technique Du Batiment Acoustic attenuation device with active double wall
US5699437A (en) * 1995-08-29 1997-12-16 United Technologies Corporation Active noise control system using phased-array sensors
US20030219132A1 (en) * 2002-04-04 2003-11-27 Brigham Young University Multi-channel active control system and method for the reduction of tonal noise from an axial fan
GB2396512A (en) * 2002-12-19 2004-06-23 Ultra Electronics Ltd Active noise attenuation system for vehicles

Also Published As

Publication number Publication date
US20060029233A1 (en) 2006-02-09
DE102005037034A1 (de) 2006-03-23
JP5336690B2 (ja) 2013-11-06
US7327849B2 (en) 2008-02-05
JP2006065324A (ja) 2006-03-09
GB2417156A (en) 2006-02-15
GB0515390D0 (en) 2005-08-31
DE102005037034B4 (de) 2018-10-04

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